CVE-2022-37071Public exploitNetwork attack vector

Root-shell execution via unbounded sscanf conversion

Published Aug 25, 2022 · Updated Aug 3, 2024

Stack-based buffer overflow in H3C GR-1200W MiniGRW1A0V100R006 allows remote attackers to obtain a root shell via an HTTP request. UpdateOne2One passes the request's param value to sscanf with an unbounded %s conversion into the smaller V6 stack buffer, so oversized input overwrites the stack. Network access to the web handler is the documented gate; demonstrated effects include a process restart, while crafted offsets support denial of service or root-shell execution.

CVSS severity9.8
Critical
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in H3C GR-1200W MiniGRW1A0V100R006 allows remote attackers to obtain a root shell via an HTTP request. UpdateOne2One passes the request's param value to sscanf with an unbounded %s conversion into the smaller V6 stack buffer, so oversized input overwrites the stack. Network access to the web handler is the documented gate; demonstrated effects include a process restart, while crafted offsets support denial of service or root-shell execution.

The record

CVE
CVE-2022-37071
Published
Aug 25, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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